Yippee! I have found my John Grant! He is John Ban Grant living on the East 1/2 of Lot 10 on the First Concession. I found him in the Upper Canada Land Petitions. All of the children petitioned for land too and when they did, they noted their ages. The ages matched (not being more than a year off). That lot was deeded to him at no cost. Crown to Peter Grant, Peter to Duncan Grant, Duncan to John Grant. I think that this Peter may be John's father with Duncan being his brother.